body {
    margin: 0; /*去掉默认的样式*/
    font-family: Sans-serif;
    color: rgba(0, 0, 0, 0.84);
    font-size: 16px;
    padding: 30px;
  }
  

  .one{
      position: relative;
  }

  .first{
      position: absolute;
      top: 10px;
      right: 10px;
      font-size: 20px;
      color: yellow;
  }

 
  img {
    width: 100%;
  }
  